Grinding of antifriction-rollers



.I. BASS.

GRINDING 0F ANTIFRICTION ROLLERS.

Patented Apr. 26,1921.

4 SHEETS-SHEET I.

APPLICATION F ILED MAR. 2, I9l8.

3. BASS. GRINDING OF ANTIFRICTION ROLLERS.

4 SHEETS-SHEET 2.

J. BASS.

GRINDING OF ANTIFRiCTION ROLLERS.

APPLliIATlON FILED MAR. 2,1918- 4 SHEETSSHEET 3,.

J. BASS. GRINDING 0F ANTIFRICTION ROLLERS.

1,375,890. APPL ICATION FILED MAR. 2. 191a. Patented Apr 26 1921.

4 SHEETS-SHEET 4.

um'rso STATES PATENT OFFICE.

JOHN BASS, 0F IBOIS-COLOMBES, FRANCE.

GRINDTNG 0]? AN TIFRIG TION ROLLERS.

T 0 all whomit may concern:

Be it known that I, JOHN BAss, a subject of the King of Great Britain, residing at ject to enable such rollers to be more uni-' formly and smoothly ground thereby producing true and cylindrical antifriction rollers or cylinders which'in use will economize power, obviate irregularity of wear, remove the need for excessive lubrication, prevent the bearing with which they are employed from becoming unduly heated, and lessen or enlarged scale Fig. 8 1s a sectional View and substanprevent noise during the rolling action.

-According to the present invention the rollers are subjected to an abradingaction by means of a rotary cage adapted to carry them between grinding surfates so that each roller i also rotated about its axis during the rotation of the cage. Means are also provided whereby the rollers, during each revolution of the cage may be removed and returned thereto with their axes reversed.

In order that the invention may be clearly understood and readily-carried into effect the same will now be more fully described by the aid of the accompanying drawing in which Figure 1 is a fragmentary view of a roller or cylinder grindin machine.

Fig. 2 is a plan in part of'Fig. 1. Fig. 3 is a View of Fig. 1 as seen in the direction of the arrow 00.

Figs. 4 and 5 are, respectively, edge and face views of the grinding surfaces and cage;

Fig. 6 is a sectional view taken on the line wx of Fig. 5;

Fig. 7 is a detail sectional view on an tially on line z2 of Fig. 5;

Figs. 9 and 10 are detail elevatlons of two of the parts.

Referring to the drawings:

A, B, designate, respectively, the grinding wheel and disk, and C is the support or shaft on which the wheel A is mounted to revolve while being capable of moving longitudinally thereof under pressure. The

Specification of Letters Patent. Patent d A 26 1921 Application filed March 2, 1918. Serial No. 220,003.. I

non-rotating disk B, which is also adapted to slide onthe support C, or the member C thereof, 1s carried by a sleeve B and the cage or ring a, support I; and guide 0, are

supported from the disk B so that these various members may be simultaneously moved longitudinally of the supporting shaft C toward or from the wheel A, as by means of a hand'wheel (not shown). The shaft or support referred to is, as shown, preferably composed of two sections C, C, connected as shown in Fig. 6 to permit of the grinding wheel A, disk B and cage or ring a, being properly assembled.

The cage or ring a is provided with a serles of openings a for receiving the rollers during the grinding operation and is supported, as shown in Fig. 5, by four peripherally grooved wheels a two of which are adjustably mounted on the disk B (Figs. 6 and 7) while the other two are supported on the member 5 (Figs. 5 and 8). Said cage or ring a may be composed of a plurality of sectlons or segments secured by screws to a ring or hoop, as indicated in'dottd lines d, 03, (Figs. 4 and 5) and the cage or ring a is free to turn on the grooved wheels a between the support I) and guide 0. Said guide 0 and support I) are of the segmental form shown in Figs. 10 and 9' respectively.

The cage or ring a (see Fig. 5) is arranged eccentrically to the axis of the grinding wheel A and the disk B and the support b and guide 0 are arranged in such relation to the cage or ring a that they serve to prevent the rollers falling *I'rom the cage or ring when not in contact with the grinding wheel A and disk B. The support is connected to the disk B by the members B and is provided with openings or slots 6, b (Fig. 9), whereby the rollersmay'passfrom and return to the cage or ring during the grinding operation. Adjacent the slot B are inclined projections e, 6 (see Fig. 1) mounted, respectively, on the guide 0 and support 6, whereby as the rollers approach the slot 6', they are caused to leave the cage a and pass through the slot 2) into the spiral or twisted conduit 7 carried by the support I), which conduit causes the rollers as they pass therethrough to turn in the direction of their length. The conduit is slightly inclined and provided at its lower end with a hopper g into which the rollers pass on leaving the 30 cage.

spiral conduit. The hopper or chute y connects by means of an inclined trough h to thesupport 6 adjacent the slot or opening 6 through which the rollers in their revert- 5 ed positions pass into or reenter the cage a.

The hopper g and trough 'h. are suclras to allow of the rollers being mixed and caused under the action of gravity to move toward the opening 6 while to feed the rollers 1 through the opening a belt 71 shown as mounted by means of a spring 19' and nuts 9 to. hold the belt '5 in tenslon. I

What I claim and desire to secure by Letters Patent of the United States is 1. For grinding antifriction rollers the combination with grinding means of a rotary cage for supportingthe rollers and means for automatically removing and returning the rollers to the cage with their axes'reversed during each revolution of the 2. For grinding antifriotion rollers the combination with grinding surfaces of a loosely mounted roller supporting cage pro Vided with lateral. openings adapted to separate and guide the rollers with their axes disposed radially to the center of the cage between the grinding surfaces, means for maintaining the rollers in said cage when not in contact with the grinding surfaces 0 and means for removing and returning the rollers to the cage with their axes reversed durin each revolution. 3. or grinding antifriction rollers the combination with grinding means of a rotary cage adapted to separate and guide the 'rol rs with their axes radially disposed to the center of the cage between grinding surfaces whereby they may be rotated about their axes as well as carried around by'the rotary movement of the cage, and means for removing the rollers from the cage and returning them with their axes reversed dur mg each revolution of the cage.

4. For grinding antifrictlon rollers, the

I combination with grinding means of a roe tary cage adapted to support the rollers between opposed grinding surfaces and means comprising a twisted conduit for transferrin'g the rollers to and from the cage during each revolution.

5. A machine for grinding antifriction rollers comprising a rotary cage, means for supporting said cage, means comprising a guide for maintaining the rollers in position, means comprising a support provided with openings and inclined projections whereby the rollers will be caused to leave and reenter the cage at each revolution of the cage, and a twisted conduit intermediate of said openings adapted to reverse the direction'of the roller axes during the passage of the rollers therethrough.

6. For grinding antifriction rollers, the combination with a grinding disk, of means for supporting a series of rollers in spaced relationwhile moving relatively t and in grinding relation to said disk, and means for automatically reversing each roller relative to the supporting means, for the purpose described.

7. For grinding antifriction rollers, the combination with a'grinding disk, of a rotary cage mounted eccentrically relative to the grinding disk and adapted to support a series of rollers in grinding relation to the disk as it rotates, and means cooperating with the cage at one side of the grinding 7,

disk for removing and returning the rollers thereto successively and automatically. reversing each roller axially during such transfer.

8. for grinding antifriction rollers, the combination of a rotary grinding disk, a rotary cage mounted eccentrically relative to the disk and adapted to support a series of rollers in spaced relation and against the disk as it rotates, and means for removing the rollers from and returning them to said cage at points out of contact with the grinding disk, the rollers being automatically reversedaxially during such transfer.

9. For grinding antifriction rollers the combination of a relatively stationary disk, a grinding disk, a rotary cage supported on the stationary disk, between said disk and the grinding disk, said cage being arrangeddisk and adapted eccentric to the grindin to support a series of r0 lers in spaced relation, and means for removing rollers from and returning them to the'cage at points beyond th periphery ofthe grinding disk the rollers being automatically reversed axially during such transfer.

JOHN BASIS. 

